Burner for liquid hydrocarbons



(No Model.)

. S H. DOUGLAS.

BURNER FOR LIQUID HYDROGARBONS. N0. 256;133. Patented Apr. 11,1882.

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UNITE Ararat. FFICE@ 's'ILAs H. DOUGLAS, on ANN ARBOR, MICHIGAN.

BURNER FOR LIQUID HYDROCARBONS.

SPECIFICATION forming part of Letters Patent No. 256,133, dated. April 11, 1882.

Application filed November 26, 1881.

hadto the accompanying drawing, which forms a part of this specification.

My invention consists of the combinations of devices and appliances hereinafter described, and more particularly pointed out in the claim.

In the drawing is represented, in longitudinal section, a burner embodying my invention.

It is the object of my invention to produce a burner for burning petroleum, tar, or other liquid hydrocarbon, not from the issuing-jet itself, but at a point beyond the jetas, for instance, in the combustion-chamber or flues of a boiler-furnace or other heater. This object has been accomplished heretofore by a burner in which the hydrocarbon is delivered through a central tube terminating in a reduced nozzle concentric with and surrounded by a steam-nozzle, so that a hollow jet of steam will surround the issuing jet of oil and vapor and carry it forward, the steam also coming in contact with an intermediate portion' of the hydrocarbon-pipe, in order to heat and partially vaporize said hydrocarbon. I

- employ these features in my improvement, but

have placed them in a novel and compact relation, whereby I produce a burner easily appli cable to any kind of furnace, easily operated and regulated, cheap, durable, and reliable.

A represents a hy drocarbon-burner, B is the induction-conduit for the liquid. 0 is a steamchamber, and O a steam -induction conduit. G is a steam-nozzle. B is an oil-tube, terminating at its upper end preferably a little within and back of q the end of the steam-noz zle, but concentric therewith. B is a handvalve for regulating the flow of liquid hydrocarbon to the nozzle. There may also be a stop-cock in the steam-inlet pipe 0 for regulating the flow of the steam.

The operation of this device is substantially as follows: The burners are located-one or (No model.)

more of themin such position as to discharge into a furnace chamber, retort, fire-box, or line,

where the combustion is to be effected. The valve B is opened more or less, so as to permit any desired flow of oil or liquid hydrocarbon through the oil-pipe B audits reduced end 1). Steam admitted through G into the, chamber 0 surrounds the oil-pipe and partially heats its contents, and passes thence out through the steam-nozzle'O As the steam emerges it entirelysurroundstheemergingjetofoilorhydrocarbon, and the result is that the two are very effectually commiugled and the hydrocarbon. so comminuted as to form, with the steam, a vaporous mass of almosthomogeneous character, sufficiently oxygenized to. support and maintain a perfect and rapid combustion.

By entirely inclosing the hydrocarbon-pipe in the steam-chamber, locating a hydrocarbonchamber at its inner end, and providing said inner end with a valve the pipe may be well heated and the hydrocarbon in the chamber partially vaporized before any of it is allowed to enter the said pipe, and as the hydrocarbon in said chamber is alwaysheated while the burner is being used, the valve B may be so adjusted that a thin hollow stream of mixed liquid and vapor will flow into the pipe and be completely vaporized before itreaches the nozzle. In this condition it is very highly inflammable, and will be fit to supply to feeble fires.

It is evident that by a proper regulation of the valve at the bottom the amountof hydrocarbon fed onward can be so governed as to produce any desired amount of combustion within the combustion-chamber or furnace, retort, or fire-box, and by thevalve in the steam pipe a suitable amount of steam can be admitted to effect the properobject, and no more.

The extremity of the steam-nozzle may be plain; but I prefer to terminate itwith asmall outstanding flange, as it seems to have the effect of a more perfect dispersion of the mixture of oil and steam as they emerge from the jet. So, also, the oil-pipe may extend outeven 9 A hydrocarbonburner consisting of the casdnits leading into the steam and h drocarbon ing having the steam and hydrocarbon chanichambers respectively, substantially as debers separated by a partition, the hydrocarbonscribed. delivery pipe B, inclosed in the steam-cham- In testimony whereofIsign this specification 5 her, opening through said partition and proin the presence of two witnesses.

jecting through the opposite end of said steamchamber, the steatnnozzle (J projecting from SILAS DOUGLAS the steam-chamber and surrounding the end Witnesses: of said pipe, the valve B arranged to close the W. A. DOUGLAS, 10 inner end of said pipe, and the induction-con- 1 O. F. MEYER, Jr. 

